Electromagnetic pump and assembling method thereof

Abstract

The invention discloses an electromagnetic pump which comprises a main pipe, a coil assembly and a retainer, the coil assembly is arranged outside the main pipe in a sleeving mode, the retainer is fixed outside the coil assembly, the retainer is used for conducting magnetism outside the coil assembly, a front hole and a rear hole are formed in the retainer, and the main pipe penetrates through the front hole and the rear hole. The coil assembly comprises a coil framework on the inner side, a front magnet yoke ring, a rear magnet yoke ring and an isolating ring are arranged in the coil framework and outside the main pipe, the isolating ring is arranged between the front magnet yoke ring and the rear magnet yoke ring, and at least one side of the isolating ring is provided with a damping ring. The invention further discloses an assembling method of the electromagnetic pump, the front magnet yoke ring and / or the rear magnet yoke ring can be installed firstly, and then the retainer is installed. According to the electromagnetic pump, the damping ring is arranged on one side of the isolating ring, so that the noise of the pump station isolating ring in the axial direction is reduced when the electromagnetic pump works through the front magnet yoke ring or the rear magnet yoke ring on the side, and the noise generated when the electromagnetic pump works is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pump equipment, and in particular to an electromagnetic pump and an assembly method of the electromagnetic pump. Background Art

[0002] Generally, small household pumps are often used in water supply and infusion devices of small household appliances, such as electric irons, coffee machines, cleaning machines, etc. Existing electromagnetic pumps achieve the infusion effect of the pump through the cyclic action of two one-way valves for water inlet and water outlet. The existing known technology is to connect a diode between a conductive coil and an AC power supply, and realize the cyclic on and off of the coil through the diode, that is, to realize the on and off of the magnetic conductivity of the coil, thereby driving the pump core of the pump body to make corresponding cyclic motions, and the movement of the pump core makes the one-way valve work, and finally realizes the infusion function of the electromagnetic vibration pump. However, the above structure needs further improvement, in which the electromagnetic pump will make a loud noise when working, resulting in poor use of household appliances. Summary of the invention

[0003] One of the purposes of the present invention is to provide an electromagnetic pump to solve the technical problem of high working noise of the electromagnetic pump.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an electromagnetic pump, including: a main pipe, a coil assembly and a retaining frame, the coil assembly is sleeved outside the main pipe, the retaining frame is fixed outside the coil assembly, the retaining frame is used to conduct magnetism outside the coil assembly, the retaining frame is provided with a front hole and a rear hole, the front hole and the rear hole are for the main pipe to pass through, the coil assembly includes an inner coil frame, a front magnetic yoke ring, a rear magnetic yoke ring and an isolation ring are arranged inside the coil frame and outside the main pipe, the isolation ring is located between the front magnetic yoke ring and the rear magnetic yoke ring, and a shock-absorbing ring is arranged on at least one side of the isolation ring.

[0005] The electromagnetic pump of the present invention has a damping ring on one side of the isolating ring so that when the electromagnetic pump is working, the noise of the front yoke ring or the rear yoke ring on the side colliding with the isolating ring in the axial direction is reduced, thereby greatly reducing the noise of the electromagnetic pump when working.

[0006] Preferably, the damping ring is arranged between the isolation ring and the front magnetic yoke ring. The damping ring is arranged between the isolation ring and the front magnetic yoke ring, so that the noise caused by the collision between the front magnetic yoke ring and the isolation ring in the axial direction is eliminated; at the same time, the damping ring also makes the front magnetic yoke ring relatively fixed, reducing the collision with the retaining frame.

[0007] Preferably, the damping ring is arranged between the isolation ring and the rear yoke ring. The damping ring is arranged between the isolation ring and the rear yoke ring, so that the noise caused by the collision between the rear yoke ring and the isolation ring in the axial direction is eliminated; at the same time, the damping ring also makes the rear yoke ring relatively fixed, reducing the collision with the retaining frame.

[0008] Preferably, the damping ring is disposed between the isolation ring and the front yoke ring and the rear yoke ring. Since the axial vibration of the front yoke ring and the rear yoke ring is one of the main noise sources when the electromagnetic pump is working, damping rings are disposed on both sides of the isolation ring to reduce the collision between the front yoke ring and the rear yoke ring and the isolation ring; at the same time, the front yoke ring and the rear yoke ring are pressed by the elasticity of the damping ring, so that the positions of the two are relatively fixed to prevent collision with the retaining frame.

[0009] Preferably, the front hole is located on one side of the front yoke ring, and the diameter of the front hole is smaller than the outer diameter of the front yoke ring. The end of the front yoke ring contacts the retaining frame, which can form a magnetic circuit closed loop and improve the utilization efficiency of the magnetic field.

[0010] Preferably, the rear hole is located on one side of the rear yoke ring, and the diameter of the rear hole is smaller than the outer diameter of the rear yoke ring. The end of the rear yoke ring contacts the retaining frame, which can form a magnetic circuit closed loop and improve the utilization efficiency of the magnetic field.

[0011] Preferably, the front yoke ring and / or the rear yoke ring are interference fit with the coil frame. The front yoke ring and / or the rear yoke ring are interference fit with the coil frame, which reduces the possibility of vibration of the front yoke ring and / or the rear yoke ring, and facilitates the assembly of the front yoke ring and / or the rear yoke ring with the coil frame.

[0012] Preferably, the coil frame is convex inwardly toward the center to form the isolation ring. The isolation ring is integrally formed with the coil frame, which reduces the steps of assembling the isolation ring and improves the assembly efficiency; it also facilitates the assembly of the shock-absorbing ring.

[0013] Preferably, the front yoke ring and / or the rear yoke ring are close to the retaining frame. The damping ring will give the front yoke ring and / or the rear yoke ring an elastic force, so that the front yoke ring and / or the rear yoke ring are close to the retaining frame, thereby forming a closed magnetic circuit and improving the utilization efficiency of the magnetic field.

[0014] Another object of the present invention is to provide an assembly method of an electromagnetic pump to solve the technical problem of high operating noise of the electromagnetic pump.

[0015] To achieve the above object, the technical solution adopted by the present invention is: to provide an assembly method of an electromagnetic pump, providing any one of the above electromagnetic pumps, comprising the following steps:

[0016] a. Install the damping ring into the coil frame;

[0017] b. Installing the front magnetic yoke ring and / or the rear magnetic yoke ring into the coil frame;

[0018] c. Sleeve the retaining frame outside the coil assembly;

[0019] d. Insert the main pipe into the coil assembly and the retaining frame.

[0020] The assembly method of the electromagnetic pump of the present invention is to install the shock-absorbing ring first, then install the front yoke ring and / or the rear yoke ring into the coil frame, and then install the retaining frame, so that the front yoke ring and / or the rear yoke ring can be pressed against the retaining frame through the elastic action of the shock-absorbing ring, thereby ensuring that the front yoke ring and / or the rear yoke ring are fixed relative to the retaining frame, reducing vibration displacement, and at the same time, due to the action of the shock-absorbing ring, the sound of the front yoke ring and / or the rear yoke ring colliding with the isolation ring is eliminated.

[0021] Preferably, the force required in the above step b is 588 N to 1470 N. The assembly force between the front yoke ring and / or the rear yoke ring and the coil frame cannot be less than 588 N, which can ensure that the front yoke ring and / or the rear yoke ring will not fall out during the assembly process; at the same time, in order to ensure that the assembly is relatively easy and the assembly process does not cause damage to the coil frame, this force cannot exceed 1470 N. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] in:

[0024] Figure 1 Schematic diagram of the cross-sectional structure of the electromagnetic pump 1000 of the first embodiment;

[0025] Figure 2 It is a schematic cross-sectional structural diagram of the electromagnetic pump 2000 of the second embodiment;

[0026] The reference numerals in the figures are:

[0027] 1000, 2000——electromagnetic pump;

[0028] 1100, 2100——Supervisor;

[0029] 1200, 2200——Coil assembly;

[0030] 1210, 2210——coil skeleton;

[0031] 1211, 2211——isolation ring;

[0032] 1300, 2300——cage;

[0033] 1310, 2310—front holes;

[0034] 1320, 2320 – rear hole;

[0035] 1410, 2410——Front yoke ring;

[0036] 1420, 2420——rear yoke ring;

[0037] 1500, 2500——Shock-absorbing ring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] Embodiment 1:

[0043] like Figure 1 , which is a schematic cross-sectional structural diagram of an electromagnetic pump 1000 according to a first embodiment of the present invention.

[0044] This embodiment discloses an electromagnetic pump 1000, which includes a main pipe 1100, a coil assembly 1200 and a retaining frame 1300. The main pipe 1100 passes through the coil assembly 1200 and the retaining frame 1300, and the retaining frame 1300 is sleeved outside the coil assembly 1200.

[0045] The coil assembly 1200 includes a coil frame 1210, on which a coil is wound. The middle part of the coil frame 1210 bulges inward to form an isolation ring 1211. Shock-absorbing rings 1500 are respectively sleeved on the outside of the main pipe 1100 on both sides of the isolation ring 1211; the main pipe 1100 outside the shock-absorbing ring 1500 is sleeved with a front magnetic yoke ring 1410 and a rear magnetic yoke ring 1420. The shock-absorbing ring 1500 is made of rubber. The front magnetic yoke ring 1410 and the rear magnetic yoke ring 1420 are interference fit with the coil frame 1210.

[0046] The holder 1300 is provided with a front hole 1310 and a rear hole 1320 for the main tube 1100 to pass through. The diameter of the front hole 1310 is smaller than the outer diameter of the front magnetic yoke ring 1410, and the diameter of the rear hole 1320 is smaller than the outer diameter of the rear magnetic yoke ring 1420. The end of the front magnetic yoke ring 1410 is in close contact with the holder 1300, and the end of the rear magnetic yoke ring 1420 is in close contact with the holder 1300.

[0047] This embodiment also discloses a method for assembling an electromagnetic pump, providing the electromagnetic pump 1000, comprising the following steps:

[0048] a. Install two damping rings 1500 into the coil frame 1210;

[0049] b. Install the front yoke ring 1410 and the rear yoke ring 1420 into the coil frame 1210 by applying a force of 588 N through a fixture;

[0050] c. Sleeve the retaining frame 1300 onto the coil assembly 1200;

[0051] d. Insert the main pipe 1100 into the retaining frame 1300 and the coil assembly 1200 .

[0052] The electromagnetic pump 1000 and the assembly method of the electromagnetic pump of this embodiment, by adding shock-absorbing rings on both sides of the isolation ring 1211, the front magnetic yoke ring 1410, the rear magnetic yoke ring 1420 are close to the retaining frame 1300, and the collision between the front magnetic yoke ring 1410, the rear magnetic yoke ring 1420 and the isolation ring 1211 is reduced, thereby greatly reducing the working noise of the electromagnetic pump 1000.

[0053] Embodiment 2:

[0054] like Figure 2 , which is a schematic cross-sectional structural diagram of an electromagnetic pump 2000 according to a second embodiment of the present invention.

[0055] This embodiment discloses an electromagnetic pump 2000, including a main pipe 2100, a coil assembly 2200 and a retaining frame 2300. The main pipe 2100 passes through the coil assembly 2200 and the retaining frame 2300, and the retaining frame 2300 is sleeved outside the coil assembly 2200.

[0056] The coil assembly 2200 includes a coil frame 2210, on which a coil is wound. The middle part of the coil frame 2210 bulges inward to form an isolation ring 2211. A shock absorbing ring 2500 is provided on the outer sleeve of the main pipe 2100 on one side of the isolation ring 2211; a rear magnetic yoke ring 2420 is provided on the outer sleeve of the main pipe 2100 on the other side of the shock absorbing ring 2500. A front magnetic yoke ring 2410 is provided on the outer sleeve of the main pipe 2100 on the other side of the isolation ring 2211. The shock absorbing ring 2500 is made of rubber. The rear magnetic yoke ring 2420 is interference fit with the coil frame 2210.

[0057] The holder 2300 is provided with a front hole 2310 and a rear hole 2320 for the main tube 2100 to pass through. The diameter of the front hole 2310 is larger than the outer diameter of the front magnetic yoke ring 2410, and the diameter of the rear hole 2320 is smaller than the outer diameter of the rear magnetic yoke ring 2420. The side of the front magnetic yoke ring 2410 can contact the holder 2300, and the end of the rear magnetic yoke ring 2420 is close to the holder 2300.

[0058] This embodiment also discloses a method for assembling an electromagnetic pump, providing the electromagnetic pump 2000 described above, comprising the following steps:

[0059] a. Rotate the damping ring 1500 to the rear side of the coil frame 2210;

[0060] b. Install the rear yoke ring 2420 into the rear side of the coil frame 2210 by applying a force of 1470 N through a fixture;

[0061] c. Sleeve the retaining frame 2300 onto the coil assembly 2200;

[0062] d. Install the front yoke ring 2410 into the front side of the coil frame 2210 through the front hole 2310;

[0063] e. Insert the main pipe 2100 into the retaining frame 2300 and the coil assembly 2200.

[0064] In another embodiment, the force applied by the jig in step b is 1000 Newtons.

[0065] The electromagnetic pump 2000 of this embodiment has substantially the same effects as the electromagnetic pump 1000 of the first embodiment.

[0066] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An electromagnetic pump, comprising: A main pipe, a coil assembly and a retaining frame, wherein the coil assembly is sleeved outside the main pipe, the retaining frame is fixed outside the coil assembly, the retaining frame is used to conduct magnetism outside the coil assembly, the retaining frame is provided with a front hole and a rear hole, the front hole and the rear hole are for the main pipe to pass through, the coil assembly includes an inner coil frame, a front magnetic yoke ring, a rear magnetic yoke ring and an isolation ring are arranged inside the coil frame and outside the main pipe, the isolation ring is located between the front magnetic yoke ring and the rear magnetic yoke ring, and is characterized in that: a shock-absorbing ring is arranged on at least one side of the isolation ring.

2. The electromagnetic pump according to claim 1, characterized in that: The damping ring is arranged between the isolation ring and the front magnetic yoke ring.

3. The electromagnetic pump according to claim 1, characterized in that: The damping ring is arranged between the isolation ring and the rear magnetic yoke ring.

4. The electromagnetic pump according to claim 1, characterized in that: The shock absorbing ring is arranged between the isolation ring and the front magnetic yoke ring and the rear magnetic yoke ring.

5. The electromagnetic pump according to claim 1, characterized in that: The front hole is located at one side of the front magnetic yoke ring, and the diameter of the front hole is smaller than the outer diameter of the front magnetic yoke ring.

6. The electromagnetic pump according to claim 1, characterized in that: The rear hole is located at one side of the rear magnetic yoke ring, and the diameter of the rear hole is smaller than the outer diameter of the rear magnetic yoke ring.

7. The electromagnetic pump according to claim 1, characterized in that: The front magnetic yoke ring and / or the rear magnetic yoke ring are interference fit with the coil frame.

8. The electromagnetic pump according to claim 1, characterized in that: The coil frame protrudes toward the center to form the isolation ring.

9. The electromagnetic pump according to claim 1, characterized in that: The front magnetic yoke ring and / or the rear magnetic yoke ring are close to the retaining frame.

10. A method for assembling an electromagnetic pump, providing the electromagnetic pump according to any one of claims 1 to 9, characterized in that: The steps include: a. Install the damping ring into the coil frame; b. Installing the front magnetic yoke ring and / or the rear magnetic yoke ring into the coil frame; c. Sleeve the retaining frame outside the coil assembly; d. Insert the main pipe into the coil assembly and the retaining frame.

11. The method for assembling an electromagnetic pump according to claim 10, characterized in that: The force required in step b is 588 Newtons to 1470 Newtons.

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